
elastic
词源
源自17世纪法语词汇 'élastique',来自希腊语 'elastos'(意为可锻造的,有延展性的),最终源于 'elaunein'(意为驱动,击打)。
adjective
❶ 形容物体能够被拉伸后恢复原状的性质,通常指橡胶、松紧带等材料的物理特性。
“The elastic band snapped when I stretched it too far.”
(我把橡皮筋拉得太长时它突然断了。)
“Her pants have an elastic waistband for comfort.”
(她的裤子腰部有松紧带,穿起来很舒服。)
❶ 形容规则、计划等具有灵活可变通的特点,能够根据情况调整而不僵化。
“The company has an elastic policy regarding working hours.”
(这家公司的工作时间政策很有弹性。)
“We need an elastic approach to deal with these unpredictable situations.”
(我们需要灵活的方法来应对这些不可预测的情况。)
noun
❶ 指具有弹性的材料,尤指用于固定物品的橡皮筋或松紧带。
“She tied her hair back with a piece of elastic.”
(她用一根橡皮筋把头发扎起来。)
“The tailor used elastic to make the waistband adjustable.”
(裁缝用松紧带使腰带可以调节。)
常见短语
elastic limit — 材料在保持弹性的前提下能够承受的最大拉伸程度,超过此限度将导致永久变形。
“The bridge was designed to withstand forces well below its elastic limit.”
(这座桥的设计承重远低于其弹性极限。)
elastic demand — 经济学概念,指价格变动会显著影响需求量的商品或服务需求特性。
“Luxury goods typically have elastic demand as people buy less when prices rise.”
(奢侈品通常具有弹性需求,因为价格上涨时人们会减少购买。)